Ectopic thyroid carcinoma in the mandible with normally located goiterous thyroid gland: A case report

The presence of ectopic thyroid tissue is a developmental disorder that affects about one per 100,000–300,000 people. It is extraordinarily rare for ectopic thyroid to be out of the lines of its descent. This case is the first to report a cancerous ectopic thyroid in the mandibular bone with a goitr...

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Bibliographic Details
Published in:International journal of surgery case reports 2022-08, Vol.97, p.107433-107433, Article 107433
Main Authors: Ali, Mohamed Osama Mohamed, Mohamed, Noon Idris Abdelrahman, Ahmed, Ahmed Abdelfattah Eltomelhussein, Adam, Najdelddin Adam Ibrahim, Basher, Mohamed Osman Suliman, Elkhedir, Abdalla Abdelmutaleb Bakhit
Format: Article
Language:English
Subjects:
Case Report
Ectopic thyroid tissue
Follicular carcinoma
Mandible
Thyroid gland
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Summary:The presence of ectopic thyroid tissue is a developmental disorder that affects about one per 100,000–300,000 people. It is extraordinarily rare for ectopic thyroid to be out of the lines of its descent. This case is the first to report a cancerous ectopic thyroid in the mandibular bone with a goitrous orthotopic thyroid gland. 80-year-old female of free medical background presented to our clinic with painless left mandibular swelling that recent increase in size after tooth extraction. Surprisingly the diagnosis of ectopic thyroid tissue with cancerous follicular cells was reached upon histological analysis. The goitrous thyroid gland was found in its expected cervical location, and the patient was euthyroid. Because this diagnosis extremely rare, the possibility of ectopic thyroid carcinoma in cases of a pathological mass in the mandible must always be carefully thought out. A high degree of suspicion is essential as the unusual presentation could take. •Ectopic thyroid tissue can be found anywhere beyond the commonly known descend tract.•Mandibular mass deferential diagnosis ranges widely and rarely include ectopic thyroid.•Thyroid scan is valuable modality for detection of functioning ectopic and orthotopic gland.•Differentiation between metastatic and primary malignant ectopic is challenging.•Management depends heavily on Mets status and patient tolerability of surgeries.
ISSN:2210-2612
2210-2612
DOI:10.1016/j.ijscr.2022.107433